EP1030794A1 - Method for determining the distance between a person wearing a seat belt and an airbag unit, and related device for measuring the unwinding of the seat belt - Google Patents
Method for determining the distance between a person wearing a seat belt and an airbag unit, and related device for measuring the unwinding of the seat beltInfo
- Publication number
- EP1030794A1 EP1030794A1 EP98963347A EP98963347A EP1030794A1 EP 1030794 A1 EP1030794 A1 EP 1030794A1 EP 98963347 A EP98963347 A EP 98963347A EP 98963347 A EP98963347 A EP 98963347A EP 1030794 A1 EP1030794 A1 EP 1030794A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- sensor
- gurtabwickelmeßvorrichtung
- distance
- belt reel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
- B60R21/01546—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment using belt buckle sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
- B60R21/01548—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment sensing the amount of belt winded on retractor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01554—Seat position sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/0153—Passenger detection systems using field detection presence sensors
Definitions
- the invention relates to a method for determining the distance between the upper body of a person buckled on a vehicle seat by means of a seat belt that overlaps his shoulder and an airbag unit, and a
- the time of deployment of the airbag and / or the inflation speed can be adjusted accordingly, so that on the one hand there is no risk of injury to the person to be protected due to excessive inflation of the airbag and on the other hand an optimal protective effect is guaranteed.
- sensors which are mounted in the dashboard or in the roof of the vehicle and, for example, determine the position of the person relative to the airbag unit by means of infrared distance measurement. Such sensors require additional installation space in places where it is hardly available and additional cabling wall. The positioning of several sensors is necessary for perfect measurement results.
- the invention is based on the object of specifying an easy to carry out method for determining the distance between the upper body of a person buckled on a vehicle seat by means of a seat belt over his shoulder and an airbag unit.
- the invention is further based on the object of specifying a device with which the method according to the invention can be carried out.
- the length is measured by which the seat belt worn by the person is unwound with respect to a reference position.
- the reference position can be, for example, the fully rolled up rest position of the seat belt or the most rolled up position when the person is buckled on, which corresponds to the position of the person with his back against the seat back.
- the latter position can be learned from the system by detecting and storing the least unrolled position of the belt when the belt is buckled.
- the method according to claim 1 therefore does not require any separate sensors which detect the person and therefore necessarily apply a measurement signal to them. gene, but detects the belt handling, which is possible in many different ways and with little effort in sensors.
- the measurement signal from a separate distance sensor can be falsified if a person holds an arm or an object in the measurement field. Such measurement errors that can lead to faulty airbag deployments are corrected with the features of claim 2.
- Claims 4 to 16 are directed to different embodiments of the measuring device according to the invention.
- Fig. 1 is a sketch of a belted person with airbag unit, sensors and control unit and
- Length of the unwound strap. 1 shows a person 4 seated on the driver's seat 2 of a motor vehicle who is belted by means of a seat belt 6.
- the seat belt extends from a winding device with a belt reel 8 fastened to the vehicle frame via a deflection fitting 10 fastened to the post B to a seat-fixed anchoring 12.
- a strap that slidably receives the belt (not visible) while the belt is unrolled into one in FIG. 1 visible belt buckle can be inserted, which is attached to the side of the seat 2 facing the center of the vehicle. In this way, the pelvis and upper body of the person 4 are held by the seat belt 6.
- a sensor 14 for measuring the seat position in the forward-backward direction of the vehicle and a sensor 16 for detecting the weight of the seat 2 are provided on the seat 2.
- the winding and unwinding of the seat belt 6 is detected by a sensor 18.
- the sensors 14, 16 and 18 are connected to the inputs of a control device 20 which contains a microcomputer 21 with associated memories in a manner known per se. Further inputs of the control device 20 are connected, for example, to deceleration sensors which are attached to different points of the vehicle.
- An output of the control unit 20 is connected to an airbag unit 22, which is located in the steering wheel 24 of the vehicle. Further outputs of the control unit 20 are connected to further airbag units, belt tensioning devices, etc.
- the control unit 20 can calculate the distance between the upper body of the person 4 and the airbag unit 22 using an algorithm stored there.
- the algorithm can be a learning algorithm that uses the output signal of the sensor 18 to detect the smallest developed length of the belt 6 when the person is buckled on and evaluates this as the position of the person 4 fully leaning against the backrest of the seat 2. In this position, the upper body of the person 4 has the maximum distance from the airbag unit 22 in the respective seat position detected by the sensor 14.
- the weight of the person detected by the sensor 16 can also be used 4 are taken into account. If the person 4 now bends forward out of the seat, the part of the seat belt 6 which extends diagonally across the upper body is lengthened, for which purpose part of the seat belt 6 is unwound from the belt reel 8. This development is detected by the sensor 18 and in the control unit 20 in the extension of the belt and derived from it the reduction in the distance between the upper body
- Fig. 2 shows a plan view of the belt reel 8, on which the seat belt 6 is wound.
- a side disk 28 of the belt reel 8 is provided along its circumference with markings (not shown), which are provided at equal angular intervals, such as magnetic poles, grooves, bores, optical markings, etc., which are detected by the sensor 18.
- the sensor 18 sends a pulse train to the control unit 20 which is counted and evaluated in the control unit 20 to determine the unwinding length of the seat belt 6.
- the marks can be attached to the disc 28 in such a way that the rising and falling edges of the pulses are different, so that the direction of rotation of the belt reel 8 can also be determined.
- the absolute winding position can be determined by a reference mark, for example, so that the distance between the upper body of the person 4 and the airbag unit 22 can be calculated in the control unit 20 at any time.
- a modification of the measuring arrangement of FIG. 2, not shown, is to connect the rotary knob of a rotary potentiometer to the disk 28 either directly or via a gear, so that the resistance of the rotary potentiometer is a measure of the rotational position of the belt reel 8 and thus the effective length of the Seat belt 6 is.
- FIG. 3 differs from that of
- a sleeve 32nd is rotatably connected, which has on its outer circumference a circumferential groove 34 in the manner of a thread.
- the thread 34 is scanned by a sensor 36 which is guided in a longitudinally displaceable manner in a guide 38.
- the sensor is connected to a slide 40 of a slide potentiometer 42, which is connected to the control unit 20. In this way, the sensor 36 forms, together with the slide potentiometer 42, a sensor for detecting the rotational position of the belt reel 8 and thus the unwinding state of the seat belt 6.
- the senor can also be designed as a rotary lever which actuates a rotary potentiometer.
- Fig. 5 shows an end view of the belt reel 8, which is rotatably connected to one end of a coil spring 50, the other end of which is attached to a vehicle-mounted force measuring sensor 51. Since the spring force is a measure of the winding condition of the belt reel 8, a measure of the winding condition of the seat belt 6 can be derived from the output signal of the force measuring sensor 51.
- the embodiment according to FIG. 6 corresponds to that of FIG. 3 to a certain extent.
- a disc 52 connected in a rotationally fixed manner to the belt reel 8 has a spiral groove 53 which is scanned by a sensor 54, which in turn is moved by the slide 40 of the slide potentiometer 42 connected is.
- the sensor 54 moves linearly, so that the resistance of the slide potentiometer 42 is a measure of the rotational position of the disc 52 and thus the belt reel.
- the sensor can also be formed by a rotary lever that actuates a rotary potentiometer.
- the position of the measuring sensors in FIGS. 3, 4 and 6 can also be determined without contact, for example inductively or capacitively or in another manner known per se.
- FIG. 7 shows an embodiment of a belt unwinding measuring device that is modified compared to FIG. 2.
- a gear 55 is non-rotatably connected to the belt reel 8, which in turn is non-rotatably connected to a sensor device 56.
- the gear ratio 55 which can be a planetary gear, for example, is such that the intended measuring range of the device, which corresponds, for example, to 20 revolutions of the belt reel 8, leads to one revolution of a rotatable part of the sensor device 56.
- the sensor device 56 can be, for example, a rotary potentiometer, or a so-called resolver (resolver), which delivers an absolute angle signal without contact over one revolution.
- Such a resolver is a measuring system with a passive rotor with a non-rotationally symmetrical ferromagnetic part. Except- Half of the rotor is a fixed primary coil, which is fed by an AC voltage. Receiver coils arranged around the rotor serve as transducers, which are penetrated by the field of the primary coil, this field being influenced by the rotor depending on its angular position, so that voltages are induced in the stationary receiver coils that are dependent on the angle of rotation of the rotor, from which the Rotor angle can be determined.
- FIG. 8 shows a further embodiment of an unwinding measuring device in which a cable drum 57 is connected in a rotationally fixed manner to the belt reel 8, from which a cable 59 runs over a deflection roller 58, at the end of which a magnet 60 is fastened, which is connected to a PLCD- Position sensor (permanent magnetic linear contactless displacement sensor) interacts.
- a displacement sensor is known per se in its construction and contains a soft magnetic core, which is wound over its entire length by a coil and carries a further short coil at each end.
- the core is locally magnetically saturated. The position of this saturated area can be determined by the coil system.
- FIG. 9 shows a further embodiment of a measuring device, FIG. 9a showing an end view and FIG. 9b a section in the plane BB of FIG. 9a.
- a spool 64 is connected in a rotationally fixed manner to the belt reel 8 mounted on a housing 62 and is connected via a flat band 66 to a further spool 68 mounted on the housing 60.
- the diameter of the coil 68 is smaller than that of the coil 64.
- the coil diameters can also be the same.
- the coil 68 is biased against the coil 64 by means of a torsion spring, not shown, in such a way that the flat band 66 is constantly tensioned.
- the flat ribbon 66 is wound on both spools 64 and 68, so that when the spool rotates in one direction it unwinds from the spool 64 and winds it onto the spool 68 and vice versa, thereby changing the effective diameter of the spools 64 with the winding and 68.
- the rotational position of the coil 64 is detected by means of an angle sensor 70, the rotational position of the coil 68 by means of an
- a locking mechanism 74 locks the rotatability of the belt reel 8 in a manner known per se, for example when the vehicle is accelerating.
- the effective diameter of the spools 64 and 68 changes with the angle of rotation of the spool 62 and thus the belt reel 8.
- a certain diameter ratio belongs to each angle of rotation.
- the ratio of the effective diameters of the coil 64 and the coil 68 is equal to the ratio of the angular velocities at which the spools 64 and 68 rotate when the seat belt 6 is rolled up or down.
- the angular velocities can be measured in a simple manner with the angle sensors 70 and 72 and delivered to the control unit 20. In this way, the rotational position of the belt reel 8 and thus the winding condition of the seat belt 6 can be determined directly with each movement of the seat belt 6.
- a modification of the described embodiment of FIG. 9 is that the small spool 68 is replaced by a pair of rollers which abuts directly on the seat belt 6 and is rotated by its movement.
- the relation between the angular velocities of a roller of the roller pair and the belt roller 8 is a measure of the winding condition of the seat belt 6, which takes over the function of the flat belt 66 in this case.
- FIG. 10 shows a further embodiment of a measuring device, FIG. 10a showing a top view of the seat belt 6 and FIG. 10b a cross section through the arrangement according to FIG. 10a.
- the seat belt 6 itself is provided with codes 80 which are read by a reading device 82 which is connected to the control device 20.
- the codes 80 which contain the instantaneously unwound length of the seat belt 6, can be designed in a wide variety of ways.
- magnetized wires that are woven into the seat belt 6 are conceivable are and are partially magnetized.
- eight wires are woven in parallel to each other, an 8-bit
- Pulse wire sensors in the reader 82 is read.
- a bar code can also be applied to the seat belt 6 and read out with the reader 82 designed as a scanner.
- the application of color marks, the application of a magnetic coding etc. offers other possibilities.
- the reader 82 can read the coding 80 optically, electrically and / or magnetically.
- a band 84 wound together with the belt 6 onto the belt reel 8 is shown in dashed lines in FIG. 10 a and can carry the code, which is then read by the correspondingly arranged reading device 82.
- the band 84 can only have the length over which the development of the belt 6 is to be measured and can be directly connected to the belt 6 via this length.
- the band 84 can also be guided separately from the belt 6 at its end over its own drum.
- the belt unwinding measuring device has so far been described in such a way that it is used solely to determine the position of the person sitting on a seat of a vehicle.
- Another use of the belt unwinding measuring device according to the invention is that the belt unwinding measuring device interacts with a distance sensor that works, for example, on an ultrasound or infrared basis, which according to FIG. 1 is in the steering wheel (for the driver's seat) or Control panel (for the passenger seat) is arranged and the
- Measures distance for example, of the upper body of a person sitting on the seat.
- the distance detected by the distance sensor 86 (shown in broken lines in FIG. 1) and calculated in the control unit 20 can be falsified in that a person holds an object in front of him, for example, which gets into the measuring field of the distance sensor 86. If the distance determined by the distance sensor 86 is small without the belt unwinder measuring device also signaling a partial unwinding of the belt, this indicates that the measurement signal of the distance sensor 86 is falsified and, despite the small distance of the airbag signaled by the distance sensor 86, the Airbag unit 22 is to be fully inflated. If, in contrast, the distance sensor 86 indicates a short distance and the belt 6 is partially unwound, there is an extremely reliable, redundant signal that the airbag 22 is only partially inflated, but this inflation is very small due to the short distance Delay occurs after an accident.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19749855A DE19749855A1 (en) | 1997-11-11 | 1997-11-11 | Method for determining the distance between a person wearing a seat belt and an airbag unit, and belt unwinding measuring device for use in the method |
DE19749855 | 1997-11-11 | ||
PCT/DE1998/003326 WO1999024291A1 (en) | 1997-11-11 | 1998-11-11 | Method for determining the distance between a person wearing a seat belt and an airbag unit, and related device for measuring the unwinding of the seat belt |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1030794A1 true EP1030794A1 (en) | 2000-08-30 |
EP1030794B1 EP1030794B1 (en) | 2002-08-14 |
Family
ID=7848324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98963347A Expired - Lifetime EP1030794B1 (en) | 1997-11-11 | 1998-11-11 | Device for measuring the unwinding of the seat belt |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1030794B1 (en) |
JP (1) | JP3491831B2 (en) |
DE (2) | DE19749855A1 (en) |
WO (1) | WO1999024291A1 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937206C2 (en) * | 1999-06-11 | 2003-05-08 | Siemens Ag | Position determination device and use of a position determination device and method for producing a scale for such a device |
DE19946072A1 (en) * | 1999-09-25 | 2001-03-29 | Volkswagen Ag | Occupant retention system for vehicle has detector with arrangement for measuring extraction length of safety belt, control circuit that decides about activating retention device |
EP1339570B1 (en) * | 2000-12-07 | 2005-02-16 | Siemens Aktiengesellschaft | Device and method for detecting an object in a vehicle |
DE10142792B4 (en) * | 2001-08-31 | 2005-05-04 | Daimlerchrysler Ag | Method for determining the application status of a safety belt |
DE10231016A1 (en) * | 2002-07-09 | 2004-01-29 | Daimlerchrysler Ag | Method and device for detecting body position |
DE10332534A1 (en) * | 2003-07-17 | 2005-02-10 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Seat belt reel unit has length sensor with impedance track transmitter ring driven by reduction gear train to provide control disc child safety function |
DE10346625A1 (en) * | 2003-10-08 | 2005-05-04 | Bosch Gmbh Robert | Device for determining an occupant position in a vehicle |
GB2410593A (en) | 2004-02-02 | 2005-08-03 | Autoliv Dev | Safety arrangement for motor vehicles |
DE102005042307A1 (en) * | 2005-09-06 | 2007-03-08 | Trw Automotive Gmbh | Safety belt retractor for motor vehicle, has measuring unit with giant magneto-resistive-sensor that is designed as swiveling angle sensor and permanent magnets effecting relative movement to sensor during rotation of belt spool |
DE102005050505A1 (en) * | 2005-10-21 | 2007-04-26 | Bayerische Motoren Werke Ag | Passenger restraining system with airbag in motor vehicle has control unit designed to decide about triggering airbag depending on signals of crash sensor, seat position recognition system and belt length detector |
JP4950820B2 (en) * | 2007-09-25 | 2012-06-13 | パナソニック株式会社 | Lifting and drying equipment |
DE102007061092B4 (en) * | 2007-12-19 | 2017-01-19 | Trw Automotive Gmbh | Sensor device in a safety belt system |
DE102009011091B4 (en) * | 2009-03-03 | 2017-02-23 | Autoliv Development Ab | Belt retractor with a device for sensing the Gurtbandauszugslänge |
JP5428720B2 (en) * | 2009-10-01 | 2014-02-26 | 三菱電機株式会社 | Method and apparatus for detecting position of mover of electromagnetic actuator |
DE102013221610A1 (en) * | 2013-10-24 | 2015-04-30 | Volkswagen Aktiengesellschaft | Sensor arrangement, method for setting of climate function elements and use of a Gray code |
EP3085583A1 (en) * | 2015-04-20 | 2016-10-26 | Autoliv Development AB | A seatbelt arrangement |
US9821761B2 (en) | 2015-11-20 | 2017-11-21 | Ford Global Technologies, Llc | System and method for webbing payout |
EP3181413B1 (en) * | 2015-12-17 | 2018-09-19 | Autoliv Development AB | Electric seatbelt retractor |
US10328888B2 (en) | 2016-12-15 | 2019-06-25 | Ford Global Technologies, Llc | Lap-belt length detecting seatbelt assembly |
US10144388B2 (en) | 2017-04-28 | 2018-12-04 | GM Global Technology Operations LLC | Detection and classification of restraint system state |
US10994696B2 (en) | 2018-10-02 | 2021-05-04 | GM Global Technology Operations LLC | System and method determining seatbelt webbing payout |
DE102019213387A1 (en) * | 2019-09-04 | 2021-03-04 | Zf Friedrichshafen Ag | Inductive displacement and / or position detection |
DE102020107709A1 (en) | 2020-03-20 | 2021-09-23 | HELLA GmbH & Co. KGaA | System for determining the unrolled length of a belt |
DE102020214871A1 (en) | 2020-11-26 | 2022-06-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device for determining a property of a vehicle occupant of a vehicle |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4813925U (en) * | 1971-06-29 | 1973-02-16 | ||
DE2914643A1 (en) * | 1979-04-11 | 1980-11-06 | Volkswagenwerk Ag | AUTOMATIC Seat Belt |
JPS61257345A (en) * | 1985-05-09 | 1986-11-14 | Niles Parts Co Ltd | Device for detecting pull-out position of seat belt in seat belt wearing system |
JPH02227348A (en) * | 1989-03-01 | 1990-09-10 | Nippon Seiko Kk | Magnet built-in parts for vehicle rider protector |
JPH0343060U (en) * | 1989-09-05 | 1991-04-23 | ||
GB2236419B (en) * | 1989-09-15 | 1993-08-11 | Gen Engineering | Improvements in or relating to a safety arrangement |
JPH0361460U (en) * | 1989-10-20 | 1991-06-17 | ||
DE4023109A1 (en) * | 1990-07-20 | 1992-01-23 | Messerschmitt Boelkow Blohm | Releasing motor vehicle occupant protection appts. - sensing body positions w.r.t. to safety device e.g. inflatable cushion for more effective operation esp. for head and chest |
DE4492128T1 (en) * | 1993-03-31 | 1996-06-27 | Automotive Tech Int | Position and speed sensor for vehicle occupants |
US5454591A (en) * | 1993-11-03 | 1995-10-03 | Trw Vehicle Safety Systems Inc. | Method and apparatus for sensing a rearward facing child restraining seat |
US5413378A (en) * | 1993-12-02 | 1995-05-09 | Trw Vehicle Safety Systems Inc. | Method and apparatus for controlling an actuatable restraining device in response to discrete control zones |
US5501293A (en) * | 1995-01-23 | 1996-03-26 | Autoliv Development Ab | Safety belt retractor |
JP3091383B2 (en) * | 1995-02-17 | 2000-09-25 | 株式会社東海理化電機製作所 | Gear mechanism and webbing take-up device |
FR2734529B1 (en) * | 1995-05-23 | 1997-07-25 | Siemens Automotive Sa | METHOD AND DEVICE FOR CONTROLLING THE TIMING OF THE INFLATION OF A GAS CUSHION, FOR THE PROTECTION OF A PERSON OCCUPIED IN A MOTOR VEHICLE SEAT |
FR2746737B1 (en) * | 1996-03-29 | 1998-06-12 | Ecia Equip Composants Ind Auto | DEVICE FOR MONITORING / CONTROLLING THE TRIGGERING OF THE OPERATION OF A MODULE WITH INFLATABLE BAG INTEGRATED INTO AN EQUIPMENT OF A MOTOR VEHICLE |
FR2755082B1 (en) * | 1996-10-31 | 1999-01-15 | Peugeot | METHOD AND DEVICE FOR VALIDATING OR INHIBITING THE OPERATION OF AN INFLATABLE SAFETY BAG OF A MOTOR VEHICLE |
-
1997
- 1997-11-11 DE DE19749855A patent/DE19749855A1/en not_active Withdrawn
-
1998
- 1998-11-11 DE DE59805210T patent/DE59805210D1/en not_active Expired - Fee Related
- 1998-11-11 EP EP98963347A patent/EP1030794B1/en not_active Expired - Lifetime
- 1998-11-11 JP JP2000520331A patent/JP3491831B2/en not_active Expired - Fee Related
- 1998-11-11 WO PCT/DE1998/003326 patent/WO1999024291A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9924291A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2001522752A (en) | 2001-11-20 |
EP1030794B1 (en) | 2002-08-14 |
WO1999024291A1 (en) | 1999-05-20 |
JP3491831B2 (en) | 2004-01-26 |
DE59805210D1 (en) | 2002-09-19 |
DE19749855A1 (en) | 1999-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1030794A1 (en) | Method for determining the distance between a person wearing a seat belt and an airbag unit, and related device for measuring the unwinding of the seat belt | |
DE10026444C2 (en) | Seat belt system with a measuring arrangement for determining the webbing force | |
EP1157256A1 (en) | Length measurement system with at least one magnetic measuring rod | |
DE102017128266A1 (en) | Method and device for detecting the displacement position of a vehicle seat | |
DE602005001834T2 (en) | Seat belt retractor, seat belt and vehicle with a seat belt device | |
DE102015103085A1 (en) | Seat belt usage monitoring system and method | |
DE10156837A1 (en) | Method and device for determining the load on the body of an injured vehicle occupant | |
DE19922720A1 (en) | Belt spooler for vehicle occupant restraint system has incremental counter coupled to belt calibrated using control plate sensor so counter state represents absolute rotation angle of spool | |
WO2001044020A1 (en) | Method and device for determining the absolute angle of rotation of an object that is rotating around an approximately horizontal rotational axis | |
DE19712869A1 (en) | Steering angle sensor system with increased redundancy | |
DE10136267A1 (en) | System for determining extent to which car safety belt is extended comprises sensors above belt which detect marks on it, e.g. transparent windows which pass over LED's | |
CH711199A2 (en) | Sensing device for detecting the position of two components which can be displaced relative to one another. | |
US6935590B2 (en) | Sensor for a feedback control system | |
DE19937120C2 (en) | Steering angle measuring device | |
EP1074818A2 (en) | Position sensor | |
DE102007008602A1 (en) | Recoil holding system used for vehicle seat comprises a safety belt with a roller for generating the safety belt and a rotation sensor for specifying the relative length and tension required for the safety belt | |
DE202005020592U1 (en) | Seat belt system for motor vehicle has measuring device is positioned with respect to belt in such a manner, that it is arranged in belt proceeding direction behind belt retractor | |
DE10126699B4 (en) | Condition detection system for seat belts | |
EP1977194B1 (en) | Angle measuring apparatus for measuring an absolute angular position | |
DE102007035037A1 (en) | Measuring device for determining pulling force e.g. belt force, in e.g. safety belt system, for motor vehicle, has measuring sensor e.g. hall sensor, measuring physical variable associated with deformation of element | |
DE10257326B4 (en) | Device for winding a seatbelt | |
DE102019115440B4 (en) | Seat belt retractor | |
WO2020165030A1 (en) | Method for determining absolute belt strap extraction and safety belt system | |
DE19916805A1 (en) | Diagnostic arrangement for safety belt compares rolled-up state and roller position sensor signals to detect correct functioning of safety belt | |
DE19641548C2 (en) | Arrangement for recognizing an ineffective seat belt |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20000417 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20010605 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
RTI1 | Title (correction) |
Free format text: DEVICE FOR MEASURING THE UNWINDING OF THE SEAT BELT |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59805210 Country of ref document: DE Date of ref document: 20020919 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20021028 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030515 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20081121 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20081122 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081113 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081117 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091111 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100730 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091111 |